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PreprintarXiv licencearXiv

B anomalies and the tauphilic leptoquark model

  • Jong-Phil Lee
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Abstract

We suggest three scalar leptoquarks, S1, R̃2, and S3 which couple exclusively to the 3rd generation of leptons to explain the B anomalies. The scalar singlet S1 can explain R(D(*)), while the doublet R̃2 is needed to fit the branching ratio Br(B→ K(*)νν̅) via the right-handed Wilson coefficients CRν. A strong constraint from ΔmBs requires triplet S3 where the mixing term between S1 and S3 is important. Our analysis suggests subdominant CVL<0 and dominant CSL >0 and lepton-flavor universality violating C9LQ ≈ +1. The masses are expected to be MS1∼ MR̃2 < MS3 ≲ 3 TeV, which can be probed in future colliders.

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Cite

BibTeXRIS
BibTeX
@misc{lee2026anomalies,
  title = {{$B$ anomalies and the tauphilic leptoquark model}},
  author = {Jong-Phil Lee},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2605.08861},
  eprint = {2605.08861},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2605.08861},
}
RIS
TY  - UNPB
TI  - B anomalies and the tauphilic leptoquark model
AU  - Jong-Phil Lee
PY  - 2026
DA  - 2026/10/05
PB  - arXiv
DO  - 10.48550/arxiv.2605.08861
UR  - https://arxiv.org/abs/2605.08861
AB  - We suggest three scalar leptoquarks, S_1, R̃_2, and S_3 which couple exclusively to the 3rd generation of leptons to explain the B anomalies. The scalar singlet S_1 can explain R(D^(*)), while the doublet R̃_2 is needed to fit the branching ratio Br(B→ K^(*)νν̅) via the right-handed Wilson coefficients C_R^ν. A strong constraint from Δm_B_s requires triplet S_3 where the mixing term between S_1 and S_3 is important. Our analysis suggests subdominant C_V_L<0 and dominant C_S_L >0 and lepton-flavor universality violating C_9^LQ ≈ +1. The masses are expected to be M_S_1∼ M_R̃_2 < M_S_3 ≲ 3 TeV, which can be probed in future colliders.
ER  -